Abstract
We have been developing a software development environment using the program diagram “Hichart”. In our research, we have implemented a graphical editor for Hichart. We add new features and capabilities to the editor, including calculation of a cyclomatic complexity and generation of SVG files for a given Hichart diagram. In this paper, we present a method of automatically generating a SVG file for a given program diagram based on attribute graph grammars. The thus obtained SVG file can animate a process of calculating a cyclomatic complexity of a given Hichart diagram on any readily available Web browsers. We also describe an automatic generation of a SVG file which can be displayed when diagrams are aesthetically drawn.